TY - RPRT TI - Use of sediment-trace element geochemical models for the identification of local fluvial baseline concentrations AU - A. J. Horowitz AU - K. A. Elrick AU - C. R. Demas AU - D.K. Demcheck PY - 1991 UR - https://pubs.usgs.gov/publication/70016767 ID - 70016767 ER -